session_auth/page2.php
<!DOCTYPE html >
<html >
<head>
<title>Second page</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
</head>
<body>
<?php include('cadb.php');?>
<div style="border: 1px solid #008000;font-size:36px">Seconda pagina <?php echo $_SESSION["username"] ?> sei loggato/a con successo!</div>
<div style="border: 1px solid #008000;font-size:36px">Fai il <a href="logout.php">Logout</a></div>
</body>
</html>